Gas-heater.



L. P. BETTS.

GAS HEATER.

APPLIOATION PILEDMAR. 25. 1910.

1,026,427. Patented May '14 1912.

ZW @uvam/tw COLUMBIA PLANOGIPH C0., WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

LEWIS F. BETTS, 0F NEW YORK, N. Y., ASSIGNOR TO ABBOT A. LOW, OF HORSESHOE, NEW YORK, AND MAURICE J. WOHL AND HARRY HERTZBERG, OF BROOKLYN, NEW

YORK, TRUSTEES.

GAS-HEATER.

Specification of Letters Patent.

Patented May 14;, 1912.

To all whom t may concern.'

Be it known that I, LEWIS F. Bn'r'rs, a citizen of the United States, and resident of the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and use ful Improvements in Gras-Heaters, of which the following is a specification.

This invention relates to gas heaters adapted for use with a gas burner using the ordinary illuminating gas.

The object of this invention is to provide a device of simple construction which may be easily and cheaply manufactured and which shall be efficient in cases where a small amount of heat is required.

In carrying out my invention I provide a device formed of a single flat disk in which by reason of the peculiar construction, the desired results are produced in a very simple and efficient manner. A further object of the invention resides in the peculiar relation of the differently shaped portions of the device which enables the same to be packed or nested together so as to occupy the minimum amount of space for shipment. This feature also affords an additional protection of the device against damage in shipment and materially reduces the labor and cost of packing.

Figure 1 is a sectional view of a gas heater embodying my invention, taken about on the line 1--1 of Fig. 2. Fig. 2 is a plan view of Fig. l, the burner being omitted.

The heating device shown in the drawino' comprises a flat disk-shaped member 1, pre erably constructed of noncombustible material, such as asbestos, with a metallic member 1EL inclosing the outer edge thereof. This member l is provided at its central portion with a hollovsr projecting` portion 2, which is preferably constructed of metal and flaring so that when several of these devices are placed together these portions Will t one into the other. This hollow projecting portion 2 fits over the shell of the burner 3 and provides a support and means of attachment to the burner. The burner 3 is of peculiar construction, being provided with a chamber formed by cup-shaped members 4 and 5. These cup-shaped members 4 and 5 are formed with beaded portions around the adjoining edges thereof, one of which is pressed or spun over the other to secure the same together. This annular projection or bead 6 upon the upper cupshaped member 5 also provides a. stop and support against which the jvnojecting portion 2 of the heater is positioned and which assists in holding the same in a horizontal position. The lower portion of the burner 3 is provided with a tubular connection 7 for connecting the same to an ordinary gas fixture in the manner shown in Fig. 1. A number of small orifices 9 are provided in the lower cup shaped member 4, through which the gas passes and, when lighted, form a number of radially projecting jets which are drawn out by the currents of air, which spread outwardly under the fiat surface of the heater, in radially extend ing flames which produce an intense heat. The projection 2 at the central portion of the disk shaped member 1 is provided at its upper portion with radially extending tongues 2 which are embedded in the noncombustible material from which the member 1 is made, the parts 2 in this manner firmly connecting the metallic member Q with the member 1. It is to be noted also that the central aperture of the member 1 permits the heat from the burner 3 to pass direct to the article supported on the member 1. The flame of the burner does not contact directly with the article being heated because the upper cup shaped member 6 of the burner constitutes a closure or cap forming a metallic partition between the burner and such article.

The currents of heated air first follow the flat under surface of the heater and are then allowed to spread outwardly in a horizontal direction from the heating disk. The heated air is also drawn upwardly through the perforations 8, which are preferably arranged in a circle concentric with the center of the disk, and thus assists in the distribution of the same and also in the heating of the entire disk, which then gives ofll the heat in every direction.

Many experiments have been made in order to secure a cheap form of heater and the one herein shown and described has been found to give very efficient results. If the gas jets are lighted before the heater is placed in position on the burner the same will extend outwardly only a short distance, but immediately upon placing the heater in position on the burner the jets are drawn out to a greatly increased length thus showing conclusively the operation of the air currents just described. The eect o-f these air currents is not only to extend the flame of the gas burner, but insures a continuous and fresh supply of oxygen for combustion, thus producing a more intense heat for the same gas consumption.

While the form of heater' and burner herein shown and described is believed to be the most eiiicient for a cheap device, do not wish to be understood as limiting myself to the eXaet form shown, as it is possible to produce heaters and burners of this type vwhich may be modified somewhat in the various details of construction and it is intended that this particular form shown shall be considered as illustrative of such modifications of the invention as may come within the scope of the appended claims and not in a limiting sense.

l/Vhat I claim is:

l. A gas heater Comprising a iat disk of non-combustible substance formed with a central aperture, a hollow projection at the central portion of said disk surrounding said aperture and converging downwardly therefrom, the upper end of said projection being formed with radiating tongues penetrating the disk from the under side to connect the projection therewith, and a burner comprising a hollow body having its upper portion partially removably received in the projection, the upper extremity o`f the body of the burner being closed and forming a partition below the central aperture o-f the disk, and also provided with a number of small oriiices below the lower end of said hollow projection, scribed.

2. A gas heater comprising a disk provided with a central aperture and having a hollow projection extending therefrom and surrounding said aperture on the bottom of the disk, and a burner connected with said projection and partially received by the latter, said burner comprising an upper cup shaped member constituting that portion which` is received by the projection, and which'meniber forms a partition at the upper end of the burner and below the central aperture of the disk. j

Signed at Brooklyn, N. Y., in the county of Kings and State of New York, this 23rd day of March, 1910. f

LEWIS F. BETTS. I Witnesses:

H. HERTZBERG, GEO. WELLING GIDDINes.

Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents,

Washington, D. C.

substantially as de-` 

